Shredded Aluminum Tense Scrap (Cut Engines Block Scraps) We are a leading exporter of Aluminium Cast (Tense) to various countries in Asia. We sell all clean aluminium castings, are free of iron, brass, dirt and other non-metallic items. Cast Aluminium scrap is generally found from engine blocks, cast grills and other car parts. They are clean in the sense that they are free of steel or rubber attachments. Although they are big in size, they are not so heavy.